Preparation Method of Corn Stalk Fiber Material and Its Performance Investigation in Asphalt Concrete

Zining Chen, Zhiguo Chen, Junyan Yi and Decheng Feng
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Zining Chen: School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, China
Zhiguo Chen: Jilin provincial transport scientific research institute, Changchun 130102, China
Junyan Yi: School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, China
Decheng Feng: School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, China

Sustainability, 2019, vol. 11, issue 15, 1-24

Abstract: In this study, a bioresource material, corn stalks, were converted by a combination of physical and chemical methods into a corn stalk fiber material that can be utilized in an asphalt pavement. Firstly, corn stalk fiber was produced with different comminution times, mass fractions of sodium hydroxide solution, reaction times, and reaction temperatures. An orthogonal experimental method was employed to determine the optimal production process. The results show that the optimal comminution time was 3.5 min, and corn stalk should be reacted with a sodium hydroxide solution at 80 °C for 30 min to obtain the best corn stalk fiber product. The mass ratios of corn stalk fibers, sodium hydroxide, and water should be 8:1:200. After an evaluation of the physical and mechanical properties of the corn stalk fibers, asphalt binders, and mixtures, it was concluded that this kind of corn stalk fiber can be a good substitute of pavement fiber.

Keywords: corn stalk fiber; sodium hydroxide treatment; rind–pith separation; orthogonal experimental method; production process optimization; asphalt pavement material (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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